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2 years ago

Evaluate a/b for a = 4/5 and b = -9/2

Mathematics

1 answer:

Temka [501]2 years ago

8 0

Answer:

-8/45

Step-by-step explanation:

we can solve a/b by plugging in the given values and we have the new expression:

4/5 / -9/2

to solve, we can use multiply the two fractions together using KCF which stands for: Keep Change Flip. we keep the first fraction as is, change the division sign into a multiplication, and flip the 2nd fraction to its reciprocal (numerator becomes denominator and denominator becomes numerator)

4/5 / -9/2 becomes:

4/5 × 2/-9 < simply multiply the fraction

4 × 2 = 8

5 × -9 = -45

8/-45 is our new fraction. we cannot simplify this any further so this is our answer which can also be written as -8/45

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2 years ago

The surface area of a cone with radius r units and slant height s units is shown below:

Diano4ka-milaya [45]

Step-by-step explanation:

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1 year ago

It cost Bo $9.75 to send 65 text messages. How many text messages did he send if he spent $6.60?

VashaNatasha [74]

If we use $6.60 then 44 massages will go to be sent.

<h3>What are the ratio and proportion?</h3>

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

For example 3/8 here 3 is the numerator and 8 is the denominator the value of the fraction will be less than 1 or greater than it depends upon the numerator and denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

Given that,

$9.75 ⇔ 65 text massages

Divide by 9.75

$1 ⇔ 6.67 massages,

Multiply by 6.60

$6.60 ⇔ 44 text messages.

Hence "If we use $6.60 then 44 massages will go to be sent".

For more information about ratio and proportion,

brainly.com/question/26974513

#SPJ1

5 0

1 year ago

Solve for n. (10 5/8 + 3 5/8) + 2 3/8 = n + 12

Brums [2.3K]

I think n is 9 hope i helped

8 0

2 years ago

Read 2 more answers

Select the statement that describes this expression: 5 x 3 − (2 x 4) + 5.

Mashcka [7]

Answer:

It would be subtract the product of 2 and 4 from the product of 5 and 3, then add 5 because it’s parenthesis then you would multiply/devide then add/subtract whatever comes first

Step-by-step explanation:

5x3 - (2x4) + 5

5x3 - 8 + 5

15 - 8 + 5

7 + 5

(Hice los cálculos aquí en caso de que lo necesitaras)

3 0

2 years ago